| 反拱型水垫塘底板结构的稳定性研究 |
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| 引用本文： | 练继建,杨敏,安刚,胡明罡.反拱型水垫塘底板结构的稳定性研究[J].水利水电技术,2001,32(12):24-26. |
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| 作者姓名： | 练继建 杨敏 安刚 胡明罡 |
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| 作者单位： | 天津大学,水利水电工程系, |
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| 基金项目： | 国家电力公司重点科技项目资助. |
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| 摘 要： | 在研究反拱型水垫塘底板上整体水动力荷载特征的基础上,针对反拱底板的结构受力特点,提出了“随机拱”分析模型,对反拱型水垫塘底板结构局部和整体的稳定性进行了定量分析,从板块极限平衡角度给出了反拱型底板优于平底板的量化指标,可为工程设计提供依据。
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| 关 键 词： | 反拱型水垫塘 底板 稳定性 随机拱 整体水动力 荷载特征 结构受力特点 定量分析 |
| 文章编号： | 1000-0860(2001)12-0024-03 |
| 修稿时间： | 2001年10月23 |
Study on Stability of Counter-arch Slab in Plunge Pool |
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| Lian Jijian,Yang Min,An Gang,Hu Minggang.Study on Stability of Counter-arch Slab in Plunge Pool[J].Water Resources and Hydropower Engineering,2001,32(12):24-26. |
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| Authors: | Lian Jijian Yang Min An Gang Hu Minggang |
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| Abstract: | On the basis of the investigation of the averaged uplift force and fluctuating uplift force on the counter-arch slab in the plunge pool,by analyzing the structure features of the counter-arch slab,a"random arch"analysis model was proposed to determine the safety coefficient for both local stability and integral stability quantitatively.Meanwhile,the physical model test is also conducted to verify the theoretical model.The test results and calculated results are shown in rather good agreement.From the point of view of critical balance,the safety coefficient of counter-arch slab is about 3times higher than that of flat slab. |
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| Keywords: | counter-arch plunge pool slab stability random arch |
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